摘要
随着计算机和通讯技术发展而来的现代信息技术革命,给电力电子技术提供了广阔的发展前景,同时也给电源提出了更高的要求。
稳压电源模块在电路中使用广泛,直流稳压电源是常用的电子设备,它能保证在电网电压波动或负载发生变化时,输出稳定的电压。一个低纹波、高精度的稳压源在仪器仪表、工业控制及测量领域中有着重要的实际应用价值。本文介绍了应用TL431实现简单稳压的方法,给出原理、电路设计,实现了0~12V连续可调的直流稳定输出电压。
由于条件不足等外在因素,因此本课题主要是通过TL431与7805构成可调稳压电源电路,从而进行简单直流稳压电源的研制工作。
关键词:直流稳压电源 TL431 7805
With the development of computer and communication technology and modern information technology revolution, give power electronic technology to provide a broad prospects for development, but also give power put forward higher request.
Manostat module in circuit is widely used in the dc voltage stabilizer is common electronic device that can guarantee load voltage fluctuation change, stable output voltage. A low ripple voltage source, precision instrument, in the field of industrial control and measurement has important practical value. This paper introduces application of the method is simple TL431 voltage, principle, circuit design, 0 ~ 12 v dc stability of continuous adjustable output voltage.
Due to insufficient condition, therefore the external factors such TL431 mainly through this project with 7805 constitute adjustable manostat circuit, so simple of dc voltage stabilizer.